Question

match the building block of geometry to the statement that defines it.
theorem
a mathematical statement taken as fact
postulate
a formal statement declaring the meaning of a word
definition
a mathematical statement proven using postulates and definitions
diagram
a visual tool representing mathematical ideas to be interpreted

Explanation:

A theorem is proven with postulates/definitions. A postulate is a taken - as - fact statement. A definition declares a word's meaning. A diagram represents math ideas.

Answer:

theorem: a mathematical statement proven using postulates and definitions
postulate: a mathematical statement taken as fact
definition: a formal statement declaring the meaning of a word
diagram: a visual tool representing mathematical ideas to be interpreted